Hi all, I've been searching for two days on this issue and don't seem to be able to find an answer specific to my car. Here's the scoop: I recently bought a 1983 300D. The under the hood vacuum lines were all messed up causing all sorts of performance problems. I found a diagram and got most of it reconnected properly and have had good results. However, as I was putting it all back together I noticed that the central plug (on top of the valve cover) was broken and although lines were plugged into it, it essentially did nothing. I was on another forum and someone told me to scrap everything on top of the valve cover and disconnect the egr. That's fine, but he didn't mention how to do it.

I have three lines going to the central plug. One from the egr. One to the vacuum control valve and one to the surge dampener (all according to the diagram). If I disconnect the egr and plug it up, what do I do with the other two lines?

Also, if you disagree with the other guy, what is the correct way to fix this? As stated, the central plug is busted, but parts under the black cap are fine. I plugged right into the hoses on top of the valve cover. However, in trying to fix it I messed up and didn't keep track of what hoses go to which ports on the plug, so I'm not sure I have it on there right. My broken plug looks like this:

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See the pic for how the hoses are currently configured.

I wish I could find this on my own, but I can't seem to find what I need. I would appreciate anyone pointing me in the right direction.

Thanks.

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